Welcome to the Treehouse Community
Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.
Start your free trial![](https://ecs-static.teamtreehouse.com/assets/views/marketing/shared/community-banner-white-47072046c51352fe6a69f5e691ff5700b28bb11d45197d7bdf066d9ea3f72d0c.webp)
![Dou Sun](https://secure.gravatar.com/avatar/5364dbc3958ff13786b8299c1706f8dd?s=96&d=https%3A%2F%2Fecs-static.teamtreehouse.com%2Fassets%2Fcontent%2Fdefault_avatar-445fbbabfc8dc9188fb5967fe43322ee0c3e0dd1e10f378bf8343784af5a13eb.webp&r=pg)
Dou Sun
2,754 PointsI set the message different, it might be easier?
// 1. Attach this file -- math.js -- to the index.html file using a <script> tag
// 2. Add an alert to announce the program with a message like "Let's do some math!"
alert ("Let's do some math!");
// 3. Create a variable and use the prompt() method to collect a number from a visitor
let number1 = prompt("Please choose a number.");
// 4. Convert that value from a string to a floating point number
number1 = parseFloat(number1);
// 5. Repeat steps 3 and 4 to create a second variable and collect a second number
let number2 = prompt("Please choose another number"); number2 = parseFloat(number2);
// 6. Create a new variable -- message -- which you'll use to build // a complete message to print to the document // Start by creating a string that includes <h1> tags as well // and the two input numbers. The string should look something like this: // "<h1>Math with the numbers 3 and 4</h1>" where the two numbers are // the values input from the user. Use string concatenation to create this // and make sure you actually perform the math on the values by // using the + symbol to add their values together
let message = <h1>Math with the number ${number1} and ${number2}</h2>
<p>${number1} + ${number2} = ${number1 + number2}</p>
<p>${number1} * ${number2} = ${number1 * number2}</p>
<p>${number1} / ${number2} = ${number1 / number2}</p>
<p>${number1} - ${number2} = ${number1 - number2}</p>
// 7. Add another string to the message variable. // The string should look something like this after concatenation: // "3 + 4 = 7"
// 8. Add a linebreak tag -- <br> -- to the message variable
// 9. Continue to add to the message variable to include strings // demonstrating multiplication, division and subtraction // For example: // "3 * 4 = 12" // "3 / 4 = 0.75" // "3 - 4 = -1"
// 10. Use the document.write() method to print the message variable // to the web page. Open the finished.png file in this workspace // to see what the completed output should look like
document.write(message);
1 Answer
![Steven Parker](https://uploads.teamtreehouse.com/production/profile-photos/969492/micro_tool_chess_set_2.jpg)
Steven Parker
230,688 PointsTemplate strings can make things a bit easier to read. They can also span multiple lines, so you could take advantage of that as well to improve readability even further:
let message = `<h1>Math with the number ${number1} and ${number2}</h2>
${number1} + ${number2} = ${number1 + number2}<br>
${number1} * ${number2} = ${number1 * number2}<br>
${number1} / ${number2} = ${number1 / number2}<br>
${number1} - ${number2} = ${number1 - number2}<br>`;
Note that this example will look exactly like the video. You might prefer the look of paragraphs, but it's not consistent with the challenge instructions.